Edgar m



(No Model.)

B. M. HIOKMAN.

- BUFFER WHEEL.

1Io.41 -7,723. Patented Dec) 24, 1889.

WITNESSES ZJVY/EWTOR u. PErEns, Fhololilhogmphu. wnlmmm'n. c.

UNITED STATEs PATENT OFFICE.

EDGAR M. HICKMAN, OF ALBION, MICHIGAN, ASSIGNOR TO THE GALEMANUFACTURING COMPANY, OF sAME PLAoE.

BUFFER-WHEEL.

SPECIFICATION forming part of Letters Patent No. 417,723, dated December24, 1889.

Application filed September 16, 1889. Serial No. 323,999. (No model.)

To' all whom it may concern.-

Be it known that I, EDGAR M. HIOKMAN, a citizen of the United States,residing at Albion, county of Calhoun, State of Michigan, have inventeda certainnew and useful Improvement in Butter-Wheels; and I declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use the same, reference being had to the accompanying drawings,which form a part of this specification.

In the drawings, Figure l isa side elevation of an apparatus involvingmy invention. Fig. 2 is a sectional view of the same.

It is the purpose of my invention to produce an improved bufier-wheelfor polishing metallic surfaces. ,7

To this end A represents a metallic Web with a flange a at one of'itsedges.

13 is a separate ring or flange adapted to be attached to the web A bybolts 19, which pass into pillars A, formed on the web A, or might, ifdesired, be passed entirely through the web and be provided with nuts attheir ends.

0 represents sheets of canvas or sail-cloth, or equivalent material.These are preferably bound with glue at their inner peripheries, asshown at 0, but at their outer peripheries are sewed or bound together,preferably, 211- though not necessarily, by wire at c. This fabric isthen bound between the flanges a and B by the bolts 1), which passthrough the said fabric and the flanges. The position of the flanges aand B with respect to the fabric .is such that a space C, ofconsiderable width, is left between the saidflanges and the outerperiphery of the said fabric. This allows space for the fabric to yield,and thus serve as an effectual cushion to thewheel when in action. Theouter edges of the fabric are provided with a surface of emery and gluein the usual manner, or any other polishing material may constitute theapplied ingredients.

Heretofore disks of canvas extending from the periphery t0 the shafthave been em- ,ployed and clamped between like disks of steel or iron,but they have been very heavy,

and the expense of the fabric is very considerably in excess of the samein my device.

So, also, the disks of metal have extended close to the periphery of thefabric, and this has made the device unyielding, thus causing it to heatthe metal being buffed and cansing it also to bite in at points andproduce uneven Work. The same unyielding character of said formerbuffers has caused them to wear very rapidly.

By my device the buffer is made very elastic, owing to the space 0between the hind 6o ing 0 and the disks or flanges aand B. This conducesto uniform work, obviates wholly any liability to heat, enables thedevice to wear much longer, and the general construction lightens andcheapens the buffer-wheel as a whole.

What Iclaim is The herein-described buffer-wheel, consisting of the webA, having the pillars A on one side and provided with the flange a onthe other side, the removable ring B, bolted to the pillars A, and thering of textile fabric 0, projecting beyond the periphery of the wheeland secured between the ring B and flange a,

said ring of textile fabric being bound through 7 5 at o, substantiallyas and for the purpose described.

In testimony whereof I sign this specification in the presence of twowitnesses.

V EDGAR M. HICKMAN. Witnesses:

WELLS W. LEGGETT,

WV. H. CHAMBERLIN.

